How to write a resignation letter that's effective immediately? It's time to quit the job, and you're not giving two weeks' notice.Here's how to politely write a resignation letter, effective immediately. Learn how to write a resignational letter if you're quitting for personal reasons. Professional resignation letter examples for different reasons. Free templates and writing guide to resign on a positive note without feeling awkward. Hospitals as listed below. In this article, we cover everything you need to know about writing a resignation letter without notice and provide an example to get you started.